STUDENTS: TONY PEDERSON & TOBY MILLER ADVISOR: DR. WINFRED ANAKWA.
1 Micro Electric Urban Vehicle Phase III Students: Nathan Golick Kevin Jaris Advisors: Mr. Gutschlag...
-
Upload
ally-balis -
Category
Documents
-
view
217 -
download
0
Transcript of 1 Micro Electric Urban Vehicle Phase III Students: Nathan Golick Kevin Jaris Advisors: Mr. Gutschlag...
1
Micro Electric Urban VehiclePhase III
Students: Nathan Golick
Kevin Jaris
Advisors: Mr. Gutschlag
Dr. Anakwa
2
Outline of Presentation
• Project Summary• Review of previous work• Functional Description• Block Diagrams• Functional Requirements• Performance Specifications• Equipment and parts list• Schedule of tasks to be completed
3
Project Summary
• Create Simulink models for regenerative braking subsystem.
• Use additional DC motor to simulate vehicle braking dynamics.
• Use power electronics to recover energy provided by the additional DC motor during the simulated braking process.
• Investigate the option of implementing a variable speed motor drive.
• If time permits integrate completed design on the Miniature Electric Urban Vehicle (MEUV).
4
Review of Previous Work: Phase I
• Researched all components of a micro electric vehicle.
• Created a drive model.
• Selected optimal components for a test platform.
• Built a prototype MEUV.
5
Phase I Final DesignPhase I Final Design
• Motor– D&D Separately Excited
Brushed DC • Model: ES-10E-33• 8 HP Continuous• 6.7” Diameter• 11” Length• 56 lbs• 7/8” x 2” Shaft• 3/16” Keyway
6
Phase I Final DesignPhase I Final Design
• Controller– Alltrax DCX600
• 24-48V Battery Input• 600 Amp Limit for 2
minutes• 30 Amp Field Winding
Limit • Standby current: < 35mA• Drives motor to 17 peak HP• 18 kHz Operating
Frequency• -25 C to 75 C Operating
Temperature– 95 C shutdown
7
Phase I Final DesignPhase I Final Design
• Battery • Three 12 Volt Lead Acid Batteries
• 44 Ah Capacity each
• Low Cost
8
Phase I Final DesignPhase I Final Design•Single speed gear reduction drive
9
Review of Previous Work: Phase 2
• Create Simulink Models– Battery– DC Motor– Controller– Vehicle Dynamics – Data Collection (minimal)
10
Project Description
• Use an additional DC motor to drive the go-cart motor and use power electronics to recover the kinetic energy during braking simulations.
• Use a controlled voltage on the additional motor to simulate various braking profiles applied to the go-cart motor.
• Model regenerative braking subsystem in Simulink.• Perform multiple simulations to verify the design.• Investigate the possibility of using a variable speed
drive to recover energy at lower speeds. • Integrate completed design with the Miniature
Electric Urban Vehicle (MEUV).
11
System Block Diagram
DC Motor Drive Shaft Coupling Braking Power Electronics BatteryGo-Kart Motor
Braking Motor Controller (Voltage Profile)
Super Capacitors(Optional)
Battery Charger
Brake Input
12
Functional Requirements
• Brake pedal shall apply regenerative braking up to approximately 75% displacement.
• Brake pedal shall apply hydraulic and regenerative braking above 75% pedal displacement.
• Power electronics shall optimize the recovery of the available kinetic energy.
• Batteries and possibly super capacitors shall store all energy recovered by the power electronics.
DC – DC Boost Converter
13
Boost Converter Idealized Equation
Boost Converter Schematics
Vo/Vi = 1/(1-D)
14
Equipment List
Vehicle Platform•Make: Vector Go Kart •Model #: 4170•Brakes: 7.5" hydraulic disc with parking brake•Tires (Front): 16"x6"x8"•Tires (Rear): 16"x7"x8"•Dimensions: 72"L x 46"W x 49"H•Wheel Base : 47.5"•Seat to pedals: 33" to 37"•Curb weight: 310lbs•Max. Rider weight: 300lbs
15
Equipment List
Batteries(3)• Product ID: Interstate SLA1161• Type: Sealed lead acid• Voltage: 12V• Capacity: 44 Ah
Controller• Type: Alltrax DCX-600
16
Equipment List
Motor (Go Kart)
• Type: D&D Separately Excited Brushed 24-48V DC Motor
• Model #: ES-10E-33
• Max power: 17HP
• Max speed: 3000RPM
17
Equipment List
Braking Simulation Motor
•Type: Yet to be determined.
Voltage Profile Controller
•Yet to be determined.
Schedule of Future Tasks
18
Date Nate Golick Kevin Jaris
Week 1 1/29/2013 Aquire additional motor Simulate power electronics
Week 2 2/5/2013 Design pedal displacement system Contruct power electronics
Week 3 2/12/2013 Create Simulink model of motor Create voltage profile
Week 4 2/19/2013 Test power electronics with additional motor
Week 5 2/26/2013 Test power electronics with additional motor
Week 6 3/5/2013 Remove go kart motor from MUEV Create Simulink model of regenerative braking
Week 7 3/12/2013 Mount both motors onto test platform
Week 8 3/26/2013 Test regenerative braking system
Week 9 4/2/2013 Test regenerative braking system
Week 10 4/9/2013 Test regenerative braking system
Week 11 4/16/2013 Mount regenerative braking system to MUEV
Week 12 4/23/2013 Test regenerative braking system on MUEV
Week 13 4/30/2013 Test regenerative braking system on MUEV
Week 14 5/7/2013 Finalize report and presentation
Week 15 5/14/2013 Presentation
Questions?
19